Characterization of the non-coding RNAs in the extremophile Halobacterium salinarum

• Grant number: 10/10195-5
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: October 01, 2010
• End date: September 30, 2011
• Field of knowledge: Biological Sciences - Biochemistry - Molecular Biology
• Principal Investigator: Tie Koide
• Grantee: Valéria Cristina da Silva Italiani
• Host Institution: Faculdade de Medicina de Ribeirão Preto (FMRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil
• Associated research grant: 09/09532-0 - Systems biology of the extremophile Halobacterium salinarum: role of the non-coding RNAs in the global gene regulatory network model, AP.JP

Abstract

Changes in the pattern of gene expression are responsible for many of the phenotypic differences found between species. An important category of regulatory molecules that have attracted researchers attention in the last few years are the non-coding RNAs. Despite the fact that they have already been identified in archaea, the ncRNAs participation in the regulatory process of the third domain of life is not well established yet. This work aims to promote the characterization of some non-coding RNAs of Halobacterium salinarum, an obligate halophilic archaeon. To reach this goal, ten ncRNAs modulated under H. salinarum growth curve will be selected and their 5' and 3' ends will be precisely determined. These ncRNAs will be overexpressed and their function will be evaluated in a global manner by comparing the mRNAs levels in the wild type and the strains overexpressing the ncRNAs of interest. In addition, the structural and the target predictions of the selected non-coding RNAs will be determined using bioinformatics tools. The resulting data will be analyzed and will contribute to refine the global gene regulatory network of Halobacterium with mechanistic information and to unravel the role of ncRNAs in the third domain of life.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

GOMES-FILHO, JOSE VICENTE; ZARAMELA, LIVIA SOARES; DA SILVA ITALIANI, VALERIA CRISTINA; BALIGA, NITIN S.; VENCIO, RICARDO Z. N.; KOIDE, TIE. Sense overlapping transcripts in IS1341-type transposase genes are functional non-coding RNAs in archaea. RNA BIOLOGY, v. 12, n. 5, p. 490-500, MAY 4 2015. (13/21522-5, 10/10195-5, 11/07487-7, 09/09532-0)